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Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards

Posted on 2023-03-28, 10:57

in Release Announcements

in Release Announcements

It's not clear to me, or I overlooked it, where Rasteri connect LDRQ# signal from to his adapter. All MBs that I met has not routed LDRQ# to TPM header So there is kind of a standard for TPM headers, I've seen the same pinout across several manufacturers. However, the catch is LDRQ is normally …

Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards

Posted on 2023-03-26, 18:50

in Release Announcements

in Release Announcements

By the way, it seems the executable I built with DJGPP (actually cross-compiled from Linux) doesn't run when JEMM386 is active. It outright pagefaults. Running in real mode (without JEMM386), however, works as intended and I'm able to actually take a look at the LPC controller registers, and make …

Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards

Posted on 2023-03-26, 09:48

in Release Announcements

in Release Announcements

Tiido wrote on 2023-03-25, 22:00: This is excellent ~ Thanks mate! Wouldn't have been possible without you 😀

Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards

Posted on 2023-03-24, 14:13

in Release Announcements

in Release Announcements

Perhaps a "partial emulation" solution could work here? Maybe crazii's SBEMU project could be extended to support Sound Blaster cards in "direct mode" (non-DMA mode, plugged into a dISAppointment adapter) as a physical target device, while emulating a Sound Blaster with DMA in software. So instead …

Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards

Posted on 2023-03-21, 20:13

in Release Announcements

in Release Announcements

I've started a github with hardware designs and source code. Needs a lot of work still but if anyone's determined enough that should be enough to build one. https://github.com/rasteri/dISAppointment The "Sapphisa" utility will also work on the RUBY-9719VG2AR, and allows you to specify custom ports. …

Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards

Posted on 2023-03-21, 11:42

in Release Announcements

in Release Announcements

kaiser77_1982 wrote on 2023-03-21, 11:18: I prefer a PCIe-ISA, but this looks very well. Not possible I'm afraid 🙁 PCIe doesn't do DMA in the same way, so it wouldn't be DOS-compatible.

Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards

Posted on 2023-03-21, 11:08

in Release Announcements

in Release Announcements

EDIT: This is only about the chipset. Compatibility needs to be assessed at a per-board basis, as not all boards have a 20-pin TPM header and not all boards actually wire the LDRQ signals to the header. On some boards' manuals, the pins in question are marked as NC, though it could be a lie. Yeah …

Re: HIDman - USB to PS/2 converter (Open Source)

Posted on 2023-03-21, 00:20

in Release Announcements

in Release Announcements

kmeaw wrote on 2023-03-20, 23:49: I still have no idea why did it work with a PS/2-to-USB converter. Different devices have different logic thresholds I guess.

Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards

Posted on 2023-03-20, 13:40

in Release Announcements

in Release Announcements

Actually, it's possible to make it work outside DOS with the help of GRUB4DOS. The same should apply to your utility as well. Yep - I've used grub4dos to run ISA soundcards on my Ruby, everything up to XP works great. I couldn't get any versions of windows to work after that, but I didn't try very …

Re: HIDman - USB to PS/2 converter (Open Source)

Posted on 2023-03-20, 13:00

in Release Announcements

in Release Announcements

I have a DSO quad nano with two probes and a Cypress sigrok-compatible board with 16 unbuffered channels. Should I capture PS/2 clock and data lines? Yeah a sigrok capture would be perfect. If you could start the capture before you turn on the PC and capture the entire boot sequence that would be …

Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards

Posted on 2023-03-20, 09:55

in Release Announcements

in Release Announcements

LSS10999 wrote on 2023-03-20, 04:44: Excellent work! Does this adapter work out-of-box, or that it needs some configuration similar to that of RUBY-9719VG2AR? Yeah it does. A while ago I rewrote Tiido's RubyISA utility in C - https://github.com/rasteri/RubyISA32 - and the init utility for …

Re: HIDman - USB to PS/2 converter (Open Source)

Posted on 2023-03-20, 09:48

in Release Announcements

in Release Announcements

kmeaw wrote on 2023-03-20, 02:07: What can I do to collect more debugging information? Do you have a scope or logic analyzer?

Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards

Posted on 2023-03-19, 17:03

in Release Announcements

in Release Announcements

dontbugster wrote on 2023-03-19, 15:51: Wow sounds great! Do pentium 3 boards have it? I think you can use a PCI-ISA bridge with pentium 3 chipsets. Maybe I'll try that one day.

Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards

Posted on 2023-03-19, 17:03

in Release Announcements

in Release Announcements

I would like some chipset information on dma capabilities. Basically any chipset with a southbridge that has an LDRQ signal should work. Intel chipsets with an ICH or PCH (up to series 9) still have this signal. So that's anything up to potentially socket 2011 motherboards with 6th gen core CPUs. …

Re: dISAppointment - LPC to ISA adapter - ISA on modern motherboards

Posted on 2023-03-19, 15:51

in Release Announcements

in Release Announcements

For full functionality, it needs a chipset with DMA support, right? Or that LPC-to-ISA bridge provides DMA even if the chipset doesn't? Yeah it'll need a chipset with DMA. I haven't really looked into exactly how "modern" you can get before the LDRQ signal starts disappearing from LPC - I'll check …

dISAppointment - LPC to ISA adapter - ISA on modern motherboards

Posted on 2023-03-19, 14:49

in Release Announcements

in Release Announcements

Disappointed that your modern PC doesn't have ISA? Well - you've been lied to. Your motherboard does have an ISA bus, but it's locked away inside the chipset. And we can help it escape through the TPM connector. I've designed an adapter that uses the Fintek F85226 LPC-to-ISA bridge to allow you to …

Re: USB to RS232 converter using CH375B USB host module?

Posted on 2023-03-16, 10:20

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Probably, but you'd have to write drivers for it. Better off getting one of those CH375 ISA USB adapters - USB ISA cards?

Re: HIDman - USB to PS/2 converter (Open Source)

Posted on 2023-03-14, 08:12

in Release Announcements

in Release Announcements

1. I still can't seem to get " MODE CON RATE=xx DELAY=xx " working - doesn't matter which values I use, there's no change. Hey I've tested this on Windows 98 DOS mode and Dos 6.22, it seems to be working for me. Maybe the exact timings aren't right but it's definitely having an effect. What exact …

Re: SBEMU: Sound Blaster emulation on AC97

Posted on 2023-03-06, 12:40

in Marvin \ Sound

in Marvin \ Sound

I've been trying to figure this out myself. Information is very scant and often conflicting. I remember using a 10th Gen core i5 laptop (Costco price mistake about 3 years ago), and it actually booted into legacy mode (DOS), but its VGA drivers were entirely absent, which made it useless for DOS, …

Re: SBEMU: Sound Blaster emulation on AC97

Posted on 2023-03-05, 17:23

in Marvin \ Sound

in Marvin \ Sound

I think about the fastest modern system we'll see able to run SBEMU natively is a 9th or 10th gen Core i9 system. Everything beyond that will sadly be impossible outside of an emulation / VM due to the terrible decision made by Intel and Microsoft to delete BIOS legacy code. Any idea what CPU/ …

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